Boston Scientific Ownership | Who Owns Boston Scientific?

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Boston Scientific Ownership Summary

Boston Scientific is owned by 89.54% institutional investors, 0.19% insiders, and 10.26% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 9.82% of BSX shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.16% of its assets in Boston Scientific shares.

BSX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Boston Scientific	89.54%	0.19%	10.26%
Sector	Healthcare Stocks	42.54%	10.83%	46.63%
Industry	Medical Device Stocks	37.80%	10.13%	52.07%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	145.18M	9.82%	$14.17B
Vanguard group	138.25M	9.35%	$13.50B
Fmr	99.48M	6.73%	$9.71B
State street	64.93M	4.39%	$6.34B
Primecap management co/ca/	33.10M	2.24%	$3.23B
Geode capital management	32.69M	2.21%	$3.18B
Jpmorgan chase	28.33M	1.92%	$2.77B
Capital world investors	26.65M	1.80%	$2.60B
Morgan stanley	20.71M	1.40%	$2.02B
Norges bank	19.73M	1.34%	$1.76B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Bollard group	19.73M	45.28%	$1.93B
Miura global management	70.00K	10.06%	$6.83M
Surgocap partners lp	3.42M	9.30%	$334.38M
Orbimed advisors	2.43M	5.59%	$237.17M
Egerton capital (uk) llp	5.31M	5.47%	$518.66M
Fact capital, lp	95.91K	4.87%	$9.36M
Iron triangle partners lp	495.01K	4.87%	$44.21M
Catalio capital management, lp	262.97K	4.75%	$25.67M
Rhenman & partners asset management ab	438.00K	4.73%	$42.76B
Meridiem capital partners lp	720.07K	4.49%	$70.30M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	19.73M	0.23%	19.73M
Parnassus investments	6.88M	1.55%	6.87M
Polen capital management	5.60M	1.77%	5.60M
Egerton capital (uk) llp	5.31M	5.47%	3.67M
Jennison associates	4.94M	0.28%	2.82M

Top Sellers

Holder	Shares	% Assets	Change
Wellington management group llp	14.65M	0.25%	-18.00M
Fmr	99.48M	0.51%	-8.83M
Voya investment management	4.38M	0.43%	-4.36M
Artisan partners limited partnership	4.76M	0.66%	-3.76M
Price t rowe associates inc /md/	8.38M	0.09%	-2.64M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	19.73M	0.23%	19.73M	$1.76B
Polen capital management	5.60M	1.77%	5.60M	$546.56M
Axa investment managers	2.82M	0.74%	2.82M	$275.01M
Iron triangle partners lp	495.01K	4.87%	495.01K	$44.21M
Samlyn capital	486.86K	0.65%	486.86K	$47.53M

Sold Out

Holder	Change
Inlight wealth management	-2.00
Goalvest advisory	-3.00
Mendota financial group	-3.00
University of texas/texas am investment managment	-8.00
Blume capital management	-9.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Sep 30, 2025	1,701	-2.47%	1,323,886,993	2.39%	89	1.17%	897	0.79%	526	-4.71%
Jun 30, 2025	1,717	1.54%	1,345,387,314	2.31%	90	1.15%	882	-0.56%	537	-2.01%
Mar 31, 2025	1,673	7.04%	1,313,233,213	-1.58%	88	1.08%	876	7.09%	545	11.00%
Dec 31, 2024	812	-43.92%	323,911,142	-75.12%	21	0.28%	437	-39.14%	244	-48.31%
Sep 30, 2024	1,448	5.93%	1,302,103,258	-1.70%	88	1.09%	718	0.42%	472	14.29%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	46.63M	3.16%	62.58K
Vanguard Total Stock Mkt Idx Inv	46.48M	3.14%	-1.08M
Vanguard 500 Index Investor	36.62M	2.47%	-5.36M
Vanguard PRIMECAP Inv	23.47M	1.58%	-1.65M
Fidelity 500 Index	18.75M	1.27%	8.06K
SPDR® S&P 500 ETF	18.33M	1.24%	-268.46K
Capital Group Growth Fnd of Amer Comp	18.18M	1.23%	486.91K
American Funds Growth Fund of Amer A	18.18M	1.23%	486.91K
SPDR® S&P 500® ETF	17.88M	1.21%	219.86K
SPDR® S&P 500® ETF Trust	17.84M	1.21%	-93.53K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Dec 01, 2025	Butcher Arthur C	EVP& Grp Pres, MedSurg & APAC	Sell	$1.76M
Nov 06, 2025	Zane Ellen M	-	Sell	$1.27M
Nov 03, 2025	Fitzgerald Joseph Michael	EVP & Group Pres, Cardiology	Sell	$1.69M
Nov 03, 2025	Fitzgerald Joseph Michael	EVP & Group Pres, Cardiology	Sell	$362.69K
Nov 03, 2025	Fitzgerald Joseph Michael	EVP & Group Pres, Cardiology	Sell	$2.92M

Insider Transactions Trends

Date	Buy	Sell
2025 Q4	-	9
2025 Q3	-	7
2025 Q2	-	11
2025 Q1	-	26
2024 Q4	-	12

BSX Ownership FAQ

Who Owns Boston Scientific?

Boston Scientific shareholders are primarily institutional investors at 89.54%, followed by 0.19% insiders and 10.27% retail investors. The average institutional ownership in Boston Scientific's industry, Medical Device Stocks, is 37.80%, which Boston Scientific exceeds.

Who owns the most shares of Boston Scientific?

Boston Scientific’s largest shareholders are Blackrock funding, inc. /de (145.18M shares, 9.82%), Vanguard group (138.25M shares, 9.35%), and Fmr (99.48M shares, 6.73%). Together, they hold 25.90% of Boston Scientific’s total shares outstanding.

Does Blackrock own Boston Scientific?

BlackRock is not among the top 10 institutional shareholders of Boston Scientific.

Who is Boston Scientific’s biggest shareholder by percentage of total assets invested?

Bollard group is Boston Scientific’s biggest shareholder by percentage of total assets invested, with 45.28% of its assets in 19.73M Boston Scientific shares, valued at 1.93B$.

Who is the top mutual fund holder of Boston Scientific shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Boston Scientific shares, with 3.16% of its total shares outstanding invested in 46.63M Boston Scientific shares.

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